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Finding the Fourth Proportional to 619,675.08, 928,765.17 and 319,992.30

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Solution

The fourth proportional to 619,675.08, 928,765.17 and 319,992.30 is: 479,602.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,675.08 : 928,765.17 = 319,992.30 : x
  2. Step 2: Convert to fraction form
    619,675.08/928,765.17 = 319,992.30/x
  3. Step 3: Cross multiply
    619,675.08x = 928,765.17 × 319,992.30
  4. Step 4: Simplify right side
    619,675.08x = 297,197,702,908.19
  5. Step 5: Solve for x
    x = 297,197,702,908.19/619,675.08
  6. Step 6: Final answer
    x = 479,602.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.